Please run sfc /scannow
The sfc /scannow command scans all protected system files and replaces corrupted and incorrect versions with correct Microsoft versions.
To run sfc /scannow in Windows 8 you will need to open the Elevated Command Prompt. The easiest way to do this is to press the Windows key and the X key at the same time. A menu will open with the option Command Prompt (Admin), click on this.
You will see a window similar to the one below.
When the Elevated Command Prompt opens type in sfc /scannow (please note the space between sfc and /scannow), then press Enter.
If the scan finds no integrity problems in the first portion of the scan it should stop, to be sure that the scan has stopped wait five minutes, then type in exit and press Enter to stop the scan.
If it does find integrity problems the scan will continue. This will take a while, please have patience and allow it finish.
When the scan is finished please post the log of this scan.
To find sfc /scannow log, type cmd in the Search box.
cmd will appear above the search box under Apps., right click on it and choose Run as administrator, this will open the Elevated Command Prompt. This will look similar to the image below.
Copy and paste the following in the Elevated Command Prompt, then press Enter.
findstr /c:"[SR]" %windir%\logs\cbs\cbs.log >%userprofile%\Desktop\sfcdetails.txt
This will place a new icon on the desktop titled sfcdetails. Click on this to open the log, copy it and paste it in your topic.